(registered 2020-09-01, last updated 2020-09-01) Name: Randall Armstrong Email: sysadmin&opcfoundation.org Media type name: application Media subtype name: opc-nodeset+xml Required parameters: None Optional parameters: None Encoding considerations: binary The default and only encoding is UTF8. Security considerations: The media types are used for the exchange of metadata between industrial applications. Accepting metadata from an untrustworthy source could have many serious consequences. Therefore all consumers of this media type shall not accept files from an untrusted or unverifiable origin. The media format itself allows for recursive operations that could be a vector for denial service attacks. All consumers shall have protections to protect against infinite recursive loops. The document format does not contain machine code or scripts. It only has metadata that could trigger the execution of existing programs or scripts. Interoperability considerations: The data format is completely specified in IEC 62541-6. This specification provides a common representation to ensure interoperability across all platforms. (see https://webstore.iec.ch/publication/61115). Published specification: IEC 62541-6 https://webstore.iec.ch/publication/61115 An online version maintained by the OPC Foundation is found here: https://reference.opcfoundation.org/v104/Core/docs/Part6/ The published XML schema is found here: https://opcfoundation.org/UA/2011/03/UANodeSet.xsd Applications which use this media: Industrial automation applications which exchange metadata that describes the components of automation systems. Fragment identifier considerations: None Restrictions on usage: None Additional information: 1. Deprecated alias names for this type: None 2. Magic number(s): None 3. File extension(s): None 4. Macintosh file type code: None 5. Object Identifiers: None General Comments: Person to contact for further information: 1. Name: OPC Foundation 2. Email: sysadmin&opcfoundation.org Intended usage: Common No restrictions on the use are required. Author/Change controller: OPC Foundation/OPC UA Working Group Chair